Screw



FIG. 1 is a side view of the screw embodying the new design;

FIG. 2 is a second side view thereof;

FIG. 3 is a third side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a point end view thereof; and,

FIG. 6 is a close up perspective view thereof.

FIGS. 1-6 show features of a screw in phantom lines. These features are shown for environmental purposes and do not form any part of the claimed design. The phantom lines immediately adjacent the solid-line portions of the design form the boundary of the design, with the phantom lines forming no part of the claimed design. 

I claim the ornamental design for a screw, as shown and described. 